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Review: Atoms & Periodic Table

Total questions: 65

Worksheet time: 55mins

Name
Class
Date
1.

Which scientist was the first person responsible for proposing the idea of atoms?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

2.

Which scientist was the first person responsible for proposing the discovery of the electron?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

3.

Which scientist was the first person responsible for proposing the discovery of the nucleus?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

4.

Which scientist claimed that the atom was a small, dense, solid sphere?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

5.

Which scientist's model is referred to as the Plum Pudding Model?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

6.

Which scientist's model is referred to as the Planetary model?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

7.

Which scientist proposed the idea that the electrons orbited the nucleus on fixed paths with designated energies?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

8.

Which scientist proposed that the atom was indivisible using the word "atomos"?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

9.

Which scientist performed the Gold Foil Experiment??

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

10.

Showed the atom was mostly empty space, and that the nucleus was small, dense, and positively charged.

a)

Rutherford

b)

Thomson

c)

Bohr

d)

Democritus

11.

The area of probability of finding an electron.

a)

Alpha

b)

Orbital

c)

Cathode

d)

Nucleus

12.
What can you conclude from the fact that scientists continue to update the atomic model?
a)
New information about atoms continues to be discovered
b)
Old information about atoms is completely useless
c)
Scientists did not have any information about atoms until a few years ago
d)
Scientists still have no idea what atoms look like
13.

Who named the positive center of the atom the "nucleus?"

a)

Democritus

b)

Dalton

c)

Thomson

d)

Rutherford

14.

In the atomic model nicknamed the "plum pudding" model, what do the plums represent?

a)

the nucleus

b)

the atom

c)

the electrons

d)

the positive material

15.

All matter is made of ______.

a)

energy

b)

atoms

c)

electrons

d)

compounds

16.
In terms of matter, the atom is almost entirely filled with _____
a)
orbiting electrons
b)
charged protons
c)
heavy neutrons
d)
empty space
17.
An atom has 5 protons and 7 neutrons. What is the mass number of the atom?
a)
5
b)
7
c)
2
d)
12
18.
What is the mass of a neutron?
a)
1 amu
b)
0 amu
c)
same as electron
d)
doesn't have any mass
19.
What is the formula to solve for the neutron?
a)
Mass + Atomic Number= Neutrons
b)
Mass x Atomic Number = Neutrons
c)
Mass - Atomic Number = Neutrons
d)
Mass + Number of Protons = Neutron
20.
How many neutrons does the an element with an atomic number of 3 and a mass of 6.9 contain?
a)
6.9
b)
4
c)
3
d)
7
21.
How many neutrons does oxygen have?
a)
16
b)
15.99
c)
8
d)
Doesn't contain any neutrons
22.
What is the difference of neutrons between Mg(Magnesium) and B(Boron)?
a)
12
b)
6
c)
24
d)
11
23.

A Bromine ion gains 1 electron, which of the following is the correct symbol for a Bromine ion?

a)

Br-1

b)

Br+1

c)

Br+7

d)

Br-7

24.
What is the charge of an atom that has lost one electron?
a)
-1
b)
-2
c)
+1
d)
+2
25.

An atom with 2 protons, 3 neutrons, and 4 electrons has a charge of ____.

a)

+2

b)

-2

c)

+3

d)

0

26.
Ions are: 
a)
atoms with a positive or negative charge
b)
atoms with no charge
c)
atoms with ONLY a positive charge
d)
atoms with ONLY a negative charge
27.
An isotope has three forms.  30% have a mass of 4 amu, 20% have a mass of 5 amu and 50% have a mass of 3 amu.  Average atomic mass will be closest to
a)
2 amu
b)
3 amu
c)
4 amu
d)
5 amu
28.
Calculate the average atomic mass of silver.
a)
106.38649amu
b)
111.91896amu
c)
107.8677amu
d)
121
29.
An element has two naturally occurring isotopes. One is 10.013 amu and is 19.9% abundant. The other is 11.01 amu and is 80.1% abundant. What is the average atomic mass? What element is it?
a)
9.012, Beryllium
b)
12.011, Carbon
c)
6.941, Lithium
d)
10.812, Boron
30.
Atom 1 has Mass=12  Protons=6
Atom 2 has Mass= 14 Electrons=6
Are these atoms isotopes of each other or different elements?
a)
Different Elements - Mg & Si
b)
Different Elements - Ar & Ca
c)
Isotopes of Carbon
d)
Isotopes of Magnesium
31.
What is the name of the atom pictured here?
a)
Nitrogen
b)
Nitrogen-15
c)
Nitrogen-7
d)
Nitrogen-8
32.

What is the atomic number of the element shown?

a)

3

b)

4

c)

7

d)

10

33.

How many protons are in the nucleus of the element shown?

a)

19

b)

9

c)

10

d)

28

34.

What is the mass number of the element shown?

a)

15

b)

7

c)

8

d)

0

35.

What is the name of group number 1?

a)

halogens

b)

noble gases

c)

alkali metals

d)

alkaline earth metals

36.

What is the name of group number 2?

a)

transition metals

b)

halogens

c)

metaloids

d)

alkaline earth metals

37.

where are the metaloids found

a)

far left, vertical

b)

stair step/diagonal

c)

far right horizontal

d)

at the bottom

38.

What group number are the halogens found?

a)

18 (8A)

b)

1

c)

2

d)

17 (7A)

39.

Periodic law states that the elements are arranged according to their atomic ________ so that elements with similar chemical properties are in the same ________ and properties repeat periodically.

a)

numbers, rows

b)

masses, rows

c)

masses, column

d)

numbers, column

40.

A row on the Periodic Table of Elements

a)

family

b)

period

c)

row

d)

isotope

41.
__________ would have some characteristics of metals and some characteristics of nonmetals.
a)
Gold
b)
Sodium
c)
Arsenic
d)
Bismuth
42.

Metals (select all that apply)

a)

are found on the right side of the periodic table.

b)

are found on the left side of the periodic table.

c)

are good conductors of heat and electricity.

d)

are brittle.

e)

are malleable and ductile.

43.

Nonmetals (select all that apply)

a)

are found on the right side of the periodic table.

b)

are found on the left side of the periodic table.

c)

are good conductors of heat and electricity.

d)

are brittle.

e)

can be solid, liquids, or gases at room temperature.

44.

Which element is found in group 2, period 6?

a)

Oxygen (O)

b)

Barium (Ba)

c)

Selenium (Se)

d)

Carbon (C)

45.
a)
Periods
b)
Groups
46.
a)
Group 1
b)
Group 17
c)
Group 2
d)
Group 18
47.
a)
Group 1
b)
Group 17
c)
Group 18
d)
Group 2
48.
a)
Group 1
b)
Group 17
c)
Group 18
d)
Group 2
49.
a)
Metals
b)
Nonmetals
c)
Metalloids
50.
a)
Metals
b)
Nonmetals
c)
Metalloids
51.
a)
Metals
b)
Nonmetals
c)
Metalloids
52.
a)
Metals
b)
Nonmetals
c)
Metalloids
53.

Name this element.

a)

Argon

b)

Chlorine

c)

Aluminum

d)

Boron

54.

Name this element.

a)

Neon

b)

Magnesium

c)

Sodium

d)

Manganese

55.

What is the atomic number of this atom?

a)

2

b)

4

c)

6

d)

8

56.

What is this element?

a)

Beryllium (atomic #4)

b)

Boron (atomic #5)

c)

Carbon (atomic #6)

d)

Nitrogen (atomic #7)

57.

How many valence electrons?

a)

2

b)

3

c)

4

d)

5

58.

How many valence electrons?

a)

2

b)

3

c)

4

d)

5

59.

What is a valence electron?

a)

Electrons in the first energy shell

b)

Electrons in the second energy shell

c)

Electrons in the outer shell

d)

Total number of electrons

60.

What element is represented in this Bohr Model?

a)

Carbon

b)

Hydrogen

c)

Aluminum

d)

Lithium

61.

What is the atomic number of this element?

a)

17

b)

18

c)

35

d)

35.453

62.

Which Bohr model represents Neon?

a)
b)
c)
d)
63.

Remember to use your Periodic Table of Elements to help you identify which Bohr Model is pictured...

a)

carbon

b)

magnesium

c)

neon

d)

zinc

64.

How many energy levels in this element?

a)

2

b)

5

c)

6

d)

3

65.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level

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